Original A/C Service Port Caps?
 

What did they look like? Brass or aluminum? Acorn or ribbed?

Re: Original A/C Service Port Caps?
 

Anyone know and maybe have a pic?

Re: Original A/C Service Port Caps?
 

Take a look at A/C sites. I have new ones on my new POA valve and new "muffler" connected to the new compressor. Mine are plastic.

Re: Original A/C Service Port Caps?
 

I have a completely original 72. It still has the rubber plug in the sight glass. I can take a look at it in the next day or 2 & see what they are.


George

Re: Original A/C Service Port Caps?
 

IIRC they are just a cap like these https://www.amazon.com/LTWFITTING-Br.../dp/B00MP2U9BQ

Re: Original A/C Service Port Caps?
 

That’s what I’ve put on it and what I think is correct. Grabbed a couple off an outdoor a/c unit. Not sure if that’s what was there originally. Reason I ask is what I found here. Brass and aluminum versions. Don’t recall ever seeing these on a system so not sure and want to confirm.

http://thepartguy.com/ac-valvesPOA.htm#CHEVY15-51

Re: Original A/C Service Port Caps?
 

I’ve been pulling vintage AC parts at the junkyards for years, imo either cap would be correct. Here are some original poa valves I’ve pulled.

Re: Original A/C Service Port Caps?
 

Thanks. Are they always aluminum or did they vary between brass and aluminum?